I live in a small town with no gym, other than the University Rec. It gets crowded there and the only thing I don't like about it is how crowded and appealing it is. The guys are hot. And if I see a guy that's hot, there's no way I'm not going to look. -Which guys pick up on. Then they get all huffy because some 'gay guy is looking at them', even though if a hot chick walks by them, they look just as I'd look. No dif.
My one city trip to a gay gym, well a Baily chain (much dismissed by serious gay body builders) was a blast. First, me and my friend sauna. And this really, really hot guy comes in and sits with us. Boing! Latter, we take a dip in a hot tub and there he is again... It was nice to be able to 'look' at a guy without the guy freaking out that some guy was looking at him.
Later, we hit the showers. My friend does the multiple head shower, while I demurely take to a single stall. Just as I walk out of my stall, my favorite bar 'crush' comes walking out of the group stall. I had been flirting with this guy for 3 years... and suddenly here he is in front of me stark naked. More hung and more beautifully handsome than I'd even imagined. We stood there talking for 10 minutes at least. I got harder and harder as the conversation went on. Finally I had to cut it short. People were starring. I was at full attention soaking in the moment.
Never ran into the guy again. But I never had more fun picking up heavy things and putting them down. If I lived in the city, with a gay gym -I'd be a beast!
As for sharing equipment, I'm not all that thrilled either way. If they're reading a book or Olympic training, people make me uncomfortable if I feel we're 'competing' for a shared space. I'd rather they just 'have it' and I go away.